Tag Archives: software defined radio

R820T2 RTL-SDRs on Amazon.com (currently for US customers only sorry!) and are currently running a $2 off promotional sale which will expire January 31, or until the first batch of stock runs out. Compared to the other choices our RTL-SDR Blog branded units come with several improvements which we list below.

Use of the R820T2 tuner which has been shown to have slightly better noise performance and give better SNR compared to the standard R820T chip.

Use of improved component tolerances which help the circuit to operate at its optimum.

Use of a surface mount 28.8 MHz oscillator instead of the “can” type. We believe this will reduce the PPM offsets to below 30 in most dongles, but note we can not guarantee this.

Improved “full braid” coax cable on the antenna base which has significantly lower loss compared to the coax used on other brand RTL-SDR stock antennas.

The openSPOT2 is a standalone digital radio internet gateway (hotspot) designed mainly for amateur radio. You can talk with others on digital radio networks by using an openSPOT2, Wi-Fi internet access, and your radio. Compatible digital radio protocols and networks* DMR (BrandMeister, DMRplus, DMR-MARC, Phoenix, XLX) D-STAR (DCS, REF/DPlus, XRF/DExtra, XLX) System Fusion/C4FM (FCS, YSFReflector) […]

How do I become a radio amateur? The best way to start is by listening to other amateurs on any of the amateur bands—frequencies reserved for use by radio amateurs. Try 3.5MHz upwards, or 7MHz upwards for starters. There are ways of doing this even if you have no receiving equipment—see below. Listen to what’s […]

Amateur radio (also called ham radio) is the use of designated radio frequency spectra for purposes of private recreation, non-commercial exchange of messages, wireless experimentation, self-training, and emergency communication. The term “amateur” is used to specify persons interested in radio technique solely with a personal aim and without direct monetary or other similar reward, and […]

Chevron keys are hand built in the UK for the discerning cw operator. Made from solid brass the keys have a chrome plated base with the upper key parts gold plated. Magnetic tensioning in the twin lever keys allows for a super smooth operating experience. E mail for details to obtain your very own bespoke […]